From b4080cf9eabc7c106a32b248c66ef9f780c439f5 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 23 Jul 2010 06:05:43 +0000
Subject: * configure.in (RUBY_TRY_CFLAGS): try with werror turned on.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28729 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 configure.in | 32 +++++++++++++++++---------------
 1 file changed, 17 insertions(+), 15 deletions(-)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index 4aed3a1357..ee92b9e2d1 100644
--- a/configure.in
+++ b/configure.in
@@ -393,15 +393,31 @@ AC_SUBST(CHDIR)
 dnl }
 dnl compiler section {
 
+AC_DEFUN([RUBY_WERROR_FLAG], [dnl
+if test "${ac_c_werror_flag+set}"; then
+  rb_c_werror_flag="$ac_c_werror_flag"
+else
+  unset rb_c_werror_flag
+fi
+ac_c_werror_flag=yes
+$1
+if test "${rb_c_werror_flag+set}"; then
+  ac_c_werror_flag="$rb_c_werror_flag"
+else
+  unset ac_c_werror_flag
+fi])
+
 AC_DEFUN(RUBY_TRY_CFLAGS, [
     save_CFLAGS="$CFLAGS"
     CFLAGS="[$]CFLAGS $1"
     AC_MSG_CHECKING([whether ]$1[ is accepted])
-    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
+    RUBY_WERROR_FLAG([
+    AC_TRY_COMPILE([$4], [$5],
 	[$2
 	AC_MSG_RESULT(yes)],
 	[$3
 	AC_MSG_RESULT(no)])
+    ])
     CFLAGS="$save_CFLAGS"
     save_CFLAGS=
 ])
@@ -676,20 +692,6 @@ EOH
 ])dnl
 ])dnl
 
-AC_DEFUN([RUBY_WERROR_FLAG], [dnl
-if test "${ac_c_werror_flag+set}"; then
-  rb_c_werror_flag="$ac_c_werror_flag"
-else
-  unset rb_c_werror_flag
-fi
-ac_c_werror_flag=yes
-$1
-if test "${rb_c_werror_flag+set}"; then
-  ac_c_werror_flag="$rb_c_werror_flag"
-else
-  unset ac_c_werror_flag
-fi])
-
 dnl RUBY_FUNC_ATTRIBUTE(attrib, macroname, cachevar, condition)
 AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
 m4_ifval([$2], dnl
-- 
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